Multiple connection Load Testing - Inifinte Loop - Mailing list pgsql-cygwin

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Subject Multiple connection Load Testing - Inifinte Loop
Date
Msg-id 20040724023510.D86E8D1B18A@svr1.postgresql.org
Whole thread Raw
Responses Re: Multiple connection Load Testing - Inifinte Loop
List pgsql-cygwin
$ postgres --version
postgres (PostgreSQL) 7.4.3

$ uname -a
CYGWIN_NT-5.0 sbellan-nb 1.5.10(0.116/4/2) 2004-05-25 22:07 i686
unknown unknown
 Cygwin


While doing Load testing using DOTS, after 5 to 6 connections the
machine starts to slow down and
cygserver seems to hog most of the CPU.  After running the cygserve in
debug mode , I see the following
in the log file repeating infinitely.


cygserver: /netrel/src/cygwin-1.5.10-3/winsup/cygserver/bsd_mutex.cc,
line 189:
Unlocked    mutex semid
cygserver: /netrel/src/cygwin-1.5.10-3/winsup/cygserver/bsd_mutex.cc,
line 227:
Try locking mutex semid
cygserver: /netrel/src/cygwin-1.5.10-3/winsup/cygserver/bsd_mutex.cc,
line 227:
Locked      mutex semid
cygserver: /netrel/src/cygwin-1.5.10-3/winsup/cygserver/sysv_sem.cc,
line 1112:
semop:  good morning (error=0)!

cygserver: /netrel/src/cygwin-1.5.10-3/winsup/cygserver/sysv_sem.cc,
line 1121:
semop:  good morning!

cygserver: /netrel/src/cygwin-1.5.10-3/winsup/cygserver/sysv_sem.cc,
line 1049:
semop:  semaptr=A057880, sem_base=A056E04, semptr=A056E88, sem[11]=0 :
op=-1, fl
ag=wait

cygserver: /netrel/src/cygwin-1.5.10-3/winsup/cygserver/sysv_sem.cc,
line 1053:
semop:  can't do it now

cygserver: /netrel/src/cygwin-1.5.10-3/winsup/cygserver/sysv_sem.cc,
line 1086:
semop:  rollback 0 through -1

cygserver: /netrel/src/cygwin-1.5.10-3/winsup/cygserver/sysv_sem.cc,
line 1109:
semop:  good night!

cygserver: /netrel/src/cygwin-1.5.10-3/winsup/cygserver/bsd_mutex.cc,
line 189:
Unlocked    mutex semid
cygserver: /netrel/src/cygwin-1.5.10-3/winsup/cygserver/bsd_mutex.cc,
line 227:
Try locking mutex semid
cygserver: /netrel/src/cygwin-1.5.10-3/winsup/cygserver/bsd_mutex.cc,
line 227:
Locked      mutex semid
cygserver: /netrel/src/cygwin-1.5.10-3/winsup/cygserver/sysv_sem.cc,
line 1112:
semop:  good morning (error=0)!

cygserver: /netrel/src/cygwin-1.5.10-3/winsup/cygserver/sysv_sem.cc,
line 1121:
semop:  good morning!

cygserver: /netrel/src/cygwin-1.5.10-3/winsup/cygserver/sysv_sem.cc,
line 1049:
semop:  semaptr=A057880, sem_base=A056E04, semptr=A056E88, sem[11]=0 :
op=-1, fl
ag=wait

cygserver: /netrel/src/cygwin-1.5.10-3/winsup/cygserver/sysv_sem.cc,
line 1053:
semop:  can't do it now

cygserver: /netrel/src/cygwin-1.5.10-3/winsup/cygserver/sysv_sem.cc,
line 1086:
semop:  rollback 0 through -1

cygserver: /netrel/src/cygwin-1.5.10-3/winsup/cygserver/sysv_sem.cc,
line 1109:
semop:  good night!
...
...
...
...
...
...


Any help would be appreciated.


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